Condensed Consolidated Statement of Cash Flows - USD ($)	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating Activities of Continuing Operations:
Net income	$ 4,533,000,000	$ 5,088,000,000
Adjustments to reconcile income from continuing operations to net cash flows provided by operating activities of continuing operations:
Depreciation and amortization	1,401,000,000	1,352,000,000
Deferred income tax provision	444,000,000	231,000,000
Stock compensation cost	108,000,000	187,000,000
Change in:
Accounts receivable	430,000,000	(48,000,000)
Inventories and contracts in progress	1,070,000,000	843,000,000
Other current assets	100,000,000	117,000,000
Accounts payable and accrued liabilities	(88,000,000)	43,000,000
Global pension contributions	93,000,000	204,000,000
Other operating activities, net	661,000,000	763,000,000
Net cash flows provided by operating activities of continuing operations	4,044,000,000	5,022,000,000
Investing Activities of Continuing Operations:
Capital expenditures	1,044,000,000	1,063,000,000
Investments in businesses	329,000,000	378,000,000
Dispositions of businesses	172,000,000	244,000,000
Increase in customer financing assets, net	128,000,000	(72,000,000)
Increase in collaboration intangible assets	331,000,000	459,000,000
Receipts from settlements of derivative contracts	147,000,000	153,000,000
Other investing activities, net	(97,000,000)	(39,000,000)
Net cash flows used in investing activities of continuing operations	(1,416,000,000)	(1,392,000,000)
Financing Activities of Continuing Operations:
Issuance (repayment) of long-term debt, net	4,000,000	(221,000,000)
Increase (decrease) in short-term borrowings, net	2,891,000,000	(137,000,000)
Proceeds from Common Stock issuance - equity unit remarketing	1,100,000,000	0
Proceeds from Common Stock issued under employee stock plans	39,000,000	131,000,000
Dividends paid on Common Stock	1,643,000,000	1,538,000,000
Repurchase of Common Stock	4,000,000,000	1,095,000,000
Other financing activities, net	(252,000,000)	(213,000,000)
Net cash flows used in financing activities	(1,861,000,000)	(3,073,000,000)
Discontinued Operations:
Net cash (used in) provided by operating activities	(299,000,000)	3,000,000
Net cash used in investing activities	(66,000,000)	(85,000,000)
Net cash used in financing activities	(1,000,000)	0
Net cash flows used in discontinued operations	(366,000,000)	(82,000,000)
Effect of Exchange Rate on Cash and Cash Equivalents [Abstract]
Effect of foreign exchange rate changes on cash and cash equivalents	(143,000,000)	(59,000,000)
Net increase (decrease) in cash and cash equivalents	258,000,000	416,000,000
Cash and Cash Equivalents, beginning of year	5,235,000,000	4,619,000,000
Cash and Cash Equivalents, end of period	5,493,000,000	5,035,000,000
Less: Cash and cash equivalents of businesses held for sale	16,000,000	5,000,000
Cash and Cash Equivalents	$ 5,477,000,000	$ 5,030,000,000